Direct Black 38
Direct Black 38 (Chlorazol Black E) is a benzidine-based azo dye, a substrate of Enterococcus gallinarum, and is mainly used for textile dyeing. Direct Black 38 is biodegradable after being reduced by microbial enzymes (such as Enterococcus gallinarum azoreductase), breaking the azo bonds and releasing benzidine and 4-aminobiphenyl. Direct Black 38 can be used in environmental toxicology, wastewater treatment and carcinogenicity studies, but its metabolite benzidine is listed as a human carcinogen[1].
Product Specifications
CAS Number
[1937-37-7]
Product Name Alternative
Chlorazol Black E; Ferristatin II (disodium) ; C.I. 30235
UNSPSC
12171500
Hazard Statement
H319, H350, H361
Target
Biochemical Assay Reagents
Type
Dye Reagents
Related Pathways
Others
Field of Research
Others
Assay Protocol
https://www.medchemexpress.com/direct-black-38.html
Solubility
DMSO : 25 mg/mL (ultrasonic) |H2O : 5 mg/mL (ultrasonic)
Smiles
O=S(C1=C(/N=N/C2=CC=C(C3=CC=C(/N=N/C4=CC=C(N)C=C4N)C=C3)C=C2)C(N)=C5C(O)=C(/N=N/C6=CC=CC=C6)C(S(=O)(O[Na])=O)=CC5=C1)(O[Na])=O
Molecular Formula
C34H25N9Na2O7S2
Molecular Weight
781.73
Precautions
H319, H350, H361
References & Citations
[1]Bafana A, et al. Biological decolourization of C.I. Direct Black 38 by E. gallinarum. J Hazard Mater. 2008 Aug 30;157 (1) :187-93.
Shipping Conditions
Room Temperature
Storage Conditions
4°C (Powder, sealed storage, away from moisture and light)
Scientific Category
Dye Reagents
Clinical Information
No Development Reported
Available Sizes
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